Synergizing hole accumulation and transfer on composite Ni/CoOx for photoelectrochemical water oxidation

Wei Wang; Marc Heggen; Wei Cui; Benjamin Probst; Roger Alberto; Chunhua Cui

doi:10.1039/D0CC03717F

You do not have JavaScript enabled. Please enable JavaScript to access the full features of the site or access our non-JavaScript page.

Synergizing hole accumulation and transfer on composite Ni/CoO_x for photoelectrochemical water oxidation†

Wei Wang,*^a Marc Heggen,^b Wei Cui,^c Benjamin Probst,

^c Roger Alberto

^c and Chunhua Cui

*^d

Author affiliations

* Corresponding authors

^a School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, China
E-mail: wei.wang@uestc.edu.cn

^b Ernst Ruska Center for Microscopy and Spectroscopy with Electrons, Forschungszentrum Juelich GmbH, 52425 Juelich, Germany

^c Department of Chemistry, University of Zurich, Winterthurerstr. 190, CH-8057 Zurich, Switzerland

^d Molecular Electrochemistry Laboratory, Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, China
E-mail: chunhua.cui@uestc.edu.cn

Abstract

Ni/CoO_x sites were supported on an around 2 nm-TiO_x modified hematite photoanode for water oxidation. TiO_x demonstrates insignificant hole accumulation and a catalytically inactive surface that serves as an ideal platform. We reveal that the NiO_x favors the extraction of holes from the TiO_x surface, which are efficiently transferred to active CoO_x for water oxidation.

Download options Please wait...

Supplementary files

Supplementary information PDF (291K)

Article information

DOI: https://doi.org/10.1039/D0CC03717F
Article type: Communication
Submitted: 26 May 2020
Accepted: 23 Jul 2020
First published: 24 Jul 2020

Download Citation

Chem. Commun., 2020,56, 10179-10182

Permissions

Request permissions

Synergizing hole accumulation and transfer on composite Ni/CoO_x for photoelectrochemical water oxidation

W. Wang, M. Heggen, W. Cui, B. Probst, R. Alberto and C. Cui, Chem. Commun., 2020, 56, 10179 DOI: 10.1039/D0CC03717F

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Social activity

Fetching data from CrossRef.
This may take some time to load.

Chemical Communications